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How do I correctly clean up a Python object?
...it close() statement is that you have to worry about people forgetting to call it at all or forgetting to place it in a finally block to prevent a resource leak when an exception occurs.
To use the with statement, create a class with the following methods:
def __enter__(self)
def __exit__(self...
bower command not found windows
...AppData\Roaming\npm" simply won't fit into that.
Check your PATH, remove extra stuff and try to reinstall node.js and bower etc. Also there is a way to increase 1024-length limit
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Where should signal handlers live in a django project?
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I actually like to make them classmethods of the model itself. That keeps everything within one class, and means you don't have to worry about importing anything.
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Syntax of for-loop in SQL Server
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Extra Info
Just to add as no-one has posted an answer that includes how to actually iterate though a dataset inside a loop, you can use the keywords OFFSET FETCH.
Usage
DECLARE @i INT = 0;
SELECT @count= Count(*) FROM {TA...
How do I cancel a build that is in progress in Visual Studio?
...se/Break key, you can go to Tools -> Options -> Keyboard then set an extra mapping for the Build.Cancel command.
– Sean Colombo
Jul 31 '15 at 18:32
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Is there a builtin identity function in python?
... thanks, I have a trivial lambda x: x identity function that works for one string parameter. @Marcin I wish I could do lambda *args: *args :-)
– rds
Jan 6 '12 at 0:01
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How to map and remove nil values in Ruby
... Why should it? The OP needs to strip nil entries, not empty strings. BTW, nil isn't the same as an empty-string.
– the Tin Man
Aug 14 '14 at 19:31
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Python class inherits object
... so are numerous, to list some of them:
Support for descriptors. Specifically, the following constructs are made possible with descriptors:
classmethod: A method that receives the class as an implicit argument instead of the instance.
staticmethod: A method that does not receive the implicit ar...
how to bypass Access-Control-Allow-Origin?
I'm doing a ajax call to my own server on a platform which they set prevent these ajax calls (but I need it to fetch the data from my server to display retrieved data from my server's database).
My ajax script is working , it can send the data over to my server's php script to allow it to process.
H...
How to fix “Attempted relative import in non-package” even with __init__.py
...ry to execute the above shell command, the fact that you need __init__.pys all the way down, and the __package__-modifying trickery (described below by BrenBarn) needed to allow these imports for executable scripts (e.g. when using a shebang and doing ./my_script.py at the Unix shell) would all be u...